Are 862 5.3 Heads good? - LS1TECH

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Are 862 5.3 Heads good?

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Old 02-19-2007, 10:57 AM   #1
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Default Are 862 5.3 Heads good?

With my mods listed below, I dynoed 426 RWHP with these TEA 1.5 Heads. The heads were ported and milled a bit. I was wondering if I'm doing ok with these heads? I was also thinking about going to the AFR 205 heads and was wondering what gain I should see.
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Old 02-19-2007, 11:19 AM   #2
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Good numbers for a automatic car..those 5.3 TEA heads are pretty good..I would not make the change you might not pick up anything..
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Old 02-19-2007, 01:14 PM   #3
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Quote:
Originally Posted by slt200mph
Good numbers for a automatic car..those 5.3 TEA heads are pretty good..I would not make the change you might not pick up anything..
agree.
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Old 02-19-2007, 01:21 PM   #4
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So going to better head might not make more power?
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2006 Pontiac GTO, IMB, (6 Speed) K&N Intake, Borla Cat Back exhaust.
Sold(2008 HHR SS/TC, 5 speed, Black / Black)
Stock: 15.14 @ 99.4 mph 1/4 mile 2.64 60ft <-- Driver mod
1/4 mile: 14.1 @ 106.02 MPH modded 2.4 60ft
GMPP Stage 1 Kit

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Old 02-19-2007, 02:08 PM   #5
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Quote:
Originally Posted by camaro98z28
So going to better head might not make more power?

It might not be a better head..just because you pay more does not mean it is better. My TEAs flow 316 cfm that is as good as the AFRs. If you were a six speed car you would be in the mid 400s which is pretty good. The only way you are going to pick up any HP is going with a ported 90/90 combo ... the latest and greatest on the aftermarket head scene now days are the $3000 trick flow heads..I would go with the 90/90 first..after you get to the mid 400s adding more HP is pricey compared to the first 100+ HP you gained with your mods ..

PS the L92 heads and intake might be good if you had bigger cubic inches but with a 346 size motor the trick flows are the shinizznit now.. those heads and the 90/90 are bad *** ... Vengeance Racing just did a 346 with the trick flows and it made 524 rwhp.. it was a six speed car and thoes are stout numbers ..
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Old 02-21-2007, 06:43 PM   #6
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Quote:
Originally Posted by slt200mph
It might not be a better head..just because you pay more does not mean it is better. My TEAs flow 316 cfm that is as good as the AFRs. If you were a six speed car you would be in the mid 400s which is pretty good. The only way you are going to pick up any HP is going with a ported 90/90 combo ... the latest and greatest on the aftermarket head scene now days are the $3000 trick flow heads..I would go with the 90/90 first..after you get to the mid 400s adding more HP is pricey compared to the first 100+ HP you gained with your mods ..

PS the L92 heads and intake might be good if you had bigger cubic inches but with a 346 size motor the trick flows are the shinizznit now.. those heads and the 90/90 are bad *** ... Vengeance Racing just did a 346 with the trick flows and it made 524 rwhp.. it was a six speed car and thoes are stout numbers ..
Yeah I was thinking of getting the FAST 90/90 set up. 20 HP more would be great plus look great. I wonder what else I can do to make a few more HP numbers.
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2006 Pontiac GTO, IMB, (6 Speed) K&N Intake, Borla Cat Back exhaust.
Sold(2008 HHR SS/TC, 5 speed, Black / Black)
Stock: 15.14 @ 99.4 mph 1/4 mile 2.64 60ft <-- Driver mod
1/4 mile: 14.1 @ 106.02 MPH modded 2.4 60ft
GMPP Stage 1 Kit

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Old 02-21-2007, 06:43 PM
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